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[browser][MT] faster memory view refresh + cleanup #101249

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merged 1 commit into from
Apr 19, 2024

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  • the only real change is adding if (wasmMemory.buffer !== Module.HEAPU8.buffer) to forceThreadMemoryViewRefresh
  • removed duplicate if (WasmEnableThreads)

There is sibling PR for testing what would happen if we remove it all #101248

@pavelsavara pavelsavara added arch-wasm WebAssembly architecture area-VM-threading-mono os-browser Browser variant of arch-wasm labels Apr 18, 2024
@pavelsavara pavelsavara added this to the 9.0.0 milestone Apr 18, 2024
@pavelsavara pavelsavara requested review from kg and maraf April 18, 2024 16:40
@pavelsavara pavelsavara self-assigned this Apr 18, 2024
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const memory = runtimeHelpers.getMemory();
if (memory.buffer !== Module.HEAPU8.buffer) {
const wasmMemory = runtimeHelpers.getMemory();
if (wasmMemory.buffer !== Module.HEAPU8.buffer) {
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What's the reason of using updateMemoryViewes here, not forceThreadMemoryViewRefresh that differ with calling wasmMemory.grow(0);? We don't need to propagate the knowledge about the update between threads?

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I assume that grow(0) is relatively expensive.
But the receiveWorkerHeapViews is called from too many places.

@pavelsavara pavelsavara merged commit 9c237f0 into dotnet:main Apr 19, 2024
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@pavelsavara pavelsavara deleted the browser_mt_memory_views branch April 19, 2024 10:01
matouskozak pushed a commit to matouskozak/runtime that referenced this pull request Apr 30, 2024
@github-actions github-actions bot locked and limited conversation to collaborators May 20, 2024
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3 participants